// Ceres Solver - A fast non-linear least squares minimizer
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// http://ceres-solver.org/
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// Author: sameeragarwal@google.com (Sameer Agarwal)
//         dgossow@google.com (David Gossow)

#include "ceres/dynamic_cost_function_to_functor.h"

#include <memory>
#include <utility>

#include "absl/log/check.h"
#include "ceres/cost_function.h"

namespace ceres {

DynamicCostFunctionToFunctor::DynamicCostFunctionToFunctor(
    CostFunction* cost_function)
    : DynamicCostFunctionToFunctor{
          std::unique_ptr<CostFunction>{cost_function}} {}

DynamicCostFunctionToFunctor::DynamicCostFunctionToFunctor(
    std::unique_ptr<CostFunction> cost_function)
    : cost_function_(std::move(cost_function)) {
  CHECK(cost_function_ != nullptr);
}

bool DynamicCostFunctionToFunctor::operator()(double const* const* parameters,
                                              double* residuals) const {
  return cost_function_->Evaluate(parameters, residuals, nullptr);
}

}  // namespace ceres
